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  • 1 Univerity of Life Sciences in Poznań Department of Chemistry ul. Wojska Polskiego75 60-625 Poznań Poland
  • 2 University of Warmia and Mazury in Olsztyn Department of Plant Breeding and Seed Production Plac Łódzki 3 10-724 Olsztyn-Kortowo Poland
  • 3 Plant Breeding and Aclimatization Institute at Radzików Department of Plant Pathology 05-870 Błonie Poland
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One of the most urgent tasks faced by researchers investigating toxigenic fungi is to describe the kinetics of fungal metabolite formation after infestation with these fungi. For this purpose the formation of Fusarium toxins and fungal biomass markers (ERG, ATP) were analyzed after infection of three wheat cultivars (Sumai 3, Torka, Griwa) with two isolates of F. culmorum forming DON, and NIV and DON, respectively.Concentrations of the above mentioned metabolites were determined in grain and chaff in the period of 6 weeks from spike inoculation until complete maturity of grain. Results indicate considerable diversification in terms of all analyzed traits, i.e. cultivars, isolates and kinetic curves of metabolite formation, which suggests conclusions concerning resistance of wheat to ear blight. Recorded data undoubtedly are a significant contribution to the understanding of fungal metabolite formation in infected plants.

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